4H-1,4-BENZOXAZIN-3-ONE, 2,3-DIHYDRO-2,6-DIMETHYL-4-(2-(DIMETHYLAMINO)PROPYL)-, 4H-1,4-Benzoxazin-3-one, 2,3-dihydro-2,6-dimethyl-4-(2-(dimethylamino)propyl)-, hydrochloride 57462-85-8